Contact Sales & After-Sales Service

Contact & Quotation

  • Inquire: Call 0086-755-23203480, or reach out via the form below/your sales contact to discuss our design, manufacturing, and assembly capabilities.
  • Quote: Email your PCB files to [email protected] (Preferred for large files) or submit online. We will contact you promptly. Please ensure your email is correct.
Drag & Drop Files, Choose Files to Upload You can upload up to 3 files.

Notes:
For PCB fabrication, we require PCB design file in Gerber RS-274X format (most preferred), *.PCB/DDB (Protel, inform your program version) format or *.BRD (Eagle) format. For PCB assembly, we require PCB design file in above mentioned format, drilling file and BOM. Click to download BOM template To avoid file missing, please include all files into one folder and compress it into .zip or .rar format.

PCBSync / Quality assurance

PCB & PCBA
Quality Control

Know what is inspected.
Know what evidence to expect.

From bare-board electrical testing to assembly functional testing, align the acceptance criteria, inspection coverage and delivery records before your order enters production.

Build your quality review brief

For engineers, procurement teams and supplier-quality reviews.

Populated circuit board positioned in an automated test station.
Populated circuit board positioned in an automated test station.
100%Bare-board electrical testing
IPCOutgoing inspection reports
Test recordsElectrical, microsection & functional
UL · ISO 9001Review applicable file, site & scope

01 / Start with the specification

A quality plan that matches your board.

A good inspection result is meaningful only when it refers to the right revision and agreed limits. Send the controlled fabrication drawing, BOM, assembly drawing and any customer-specific requirements with your RFQ.

  1. 01Freeze the inputs

    Drawing, BOM, firmware and approved substitutions.

  2. 02Agree acceptance

    Applicable documents, revisions, class and tolerances.

  3. 03Set the test scope

    Methods, sampling, fixtures and release hold points.

  4. 04Review the records

    Link results to the inspected board, unit or lot.

  5. 05Release to ship

    Close discrepancies and confirm outgoing documentation.

Which IPC document? IPC-6012 addresses rigid bare-board qualification and performance; IPC-A-600 addresses bare-board acceptability. J-STD-001 covers soldered assembly requirements, while IPC-A-610 addresses electronic assembly acceptability. Agree the applicable document, revision and class for your order. A Class 3 request needs review; it is not established by selecting a checkbox. Compare Class 2 and Class 3.

02 / Bare-board fabrication

PCB quality control:
material to finished circuit.

Focus the fabrication review on the characteristics that affect your design: material identity, copper and plating, geometry, interconnect integrity and electrical continuity.

Laboratory handling of chemical-process samples.
Laboratory handling of chemical-process samples.
Incoming

Material & construction review

Confirm the specified laminate, copper, stackup and surface finish. Identify material substitutions or construction changes before acceptance.

In process

Geometry & interconnect integrity

Define critical dimensions, hole and plating requirements, and the microsection measurements needed for your construction. Coupon choice and sampling belong in the inspection plan.

Electrical

100% bare-board electrical test

Check boards for opens and shorts against the agreed test data and criteria. This is a bare-board connectivity check; it does not demonstrate the function of an assembled product.

Electrical-test scope →
Release

Outgoing inspection & report

Align visual and dimensional acceptance, test records, identification and packaging with the order. Add impedance results or other project-specific evidence when required.

Controlled-impedance review →
Before assembly

BOM, components & first article

Resolve approved part numbers, orientation, moisture handling and customer-supplied material responsibilities. Agree first-article review and any hold point before the rest of the batch.

First-article inspection →
During assembly

Solder paste, placement & joints

Choose inspection stages to match the package mix and process risk. SPI checks paste deposits; AOI inspects visible features; X-ray can help assess joints hidden beneath packages.

Test & program

Electrical checks plus functional validation

Agree access, fixtures, firmware, stimulus, loads and pass/fail limits. Functional testing is available; actual coverage and the number of units tested must be defined for the order.

Plan functional testing →
Final release

Configuration, records & packaging

Review the accepted assembly revision, test outcome, rework/retest status and specified labeling. Include coating, programming or cleanliness records when these are part of the agreed scope.

03 / Electronic assembly

PCBA quality control:
a board that meets its test plan.

A visually acceptable assembly still needs the electrical and functional checks appropriate to its circuit. Build the inspection plan around the failure modes that matter to your product.

Circuit-board assembly positioned in a test fixture.
Circuit-board assembly positioned in a test fixture.

04 / Coverage, with clear limits

Different tests answer different questions.

Select complementary methods. Neither an inspection photo nor a single “pass” replaces a defined test program.

Match the method to the evidence you need
MethodMain purposeWhat to agree / what it does not prove
Bare-board E-testOpens and shorts in an unpopulated PCB.Netlist, test criteria and report. It does not validate assembled-product function.
3D SPIPaste deposit geometry before placement.Measurement limits and inspection coverage. It does not establish final solder-joint integrity.
AOIVisible placement, orientation and solder features.Program coverage and verification of flagged results. Hidden joints require other methods.
X-ray inspectionInternal views of selected hidden joints and structures.Packages, views and acceptance criteria. An image alone is not a functional pass.
ICT / flying probeAccessible nets and component-level electrical checks.Board state, test access, fixtures and program. Coverage depends on the design and method.
Functional testBehavior under the specified operating conditions.Firmware, interfaces, loads and limits. Untested modes and lifetime reliability remain outside that result.
Hipot / solderabilitySpecific insulation or solder-wetting requirements.Applicability, method, samples and limits. These are separate tests, not interchangeable release checks.

05 / Evidence for your supplier file

Request the records your team will actually use.

PCBSync provides IPC-based outgoing reports and test reporting. Agree the record format, measurements, lot identification and required attachments during order review.

Inspection & test documentation

Outgoing inspection report
Order / board revision, inspection basis, checked characteristics and disposition.
Bare-board electrical-test report
Lot association, test method and recorded result; confirm any data fields your receiving team needs.
Microsection test report
Cross-section images and agreed measurements. Confirm coupon location, sample count and lot coverage.
Functional-test report
Assembly and firmware revision, procedure, tested functions and limits. Agree unit or lot reporting and test coverage.

Supplier qualification

UL & ISO 9001

Review the documents against the entity, manufacturing site and product construction relevant to your order.

  • UL: request the applicable file and recognized construction scope.
  • ISO 9001: request the certificate, issuing body, scope and validity.
  • Customer requirements: flag additional approvals or audit documents before ordering.

These credentials support supplier review. Product acceptance still depends on the agreed specifications and inspection evidence.

Keep approval records usable. Request a first-article record for a new build, measurement results for critical features, and any required customer report template. The report set should be agreed before production, including chargeable testing or special documentation.

06 / Interactive supplier-review tool

Build a quality review brief.

Turn your project needs into a practical checklist for our team. This tool runs in your browser; nothing is sent until you submit the inquiry form.

Features to discuss
Documents to request

Your review brief

A clear starting point for your RFQ.

Requested checks are subject to project review. This is not an inspection result, accepted test plan or engineering approval.

Select the service and requirements for your project.

07 / Change control & traceability

Connect the shipment to its build history.

Define the traceability depth your receiving, field-service or audit team needs. Lot-level tracking and unit serialization serve different purposes; specify the requested level and record-retention period in the order review.

Plan electronics traceability →

  1. Approved inputsDrawing, BOM, firmware and change revision
  2. Materials & buildRequired laminate, component and production-lot links
  3. Test & dispositionProgram / procedure, results and rework / retest status
  4. Shipment identityOrder, lot or serial reference matched to the report set

08 / When a discrepancy is found

Make the issue traceable. Close the loop.

Provide the order and lot reference, affected quantity, board revision, photos and the observed symptom or test result. Keep affected material identified so the issue can be investigated against the build and acceptance records.

Contain & review

Identify affected material and agree the immediate disposition.

Investigate & correct

Use the available evidence to review the cause and corrective action.

Verify & release

Agree rework or other resolution and the necessary reinspection / retest.

Published quality guarantee & after-sales policy

We guarantee the quality of every order. If your products fail to meet specifications, we will provide rework or refund. To initiate a claim, submit a complaint within 5 business days of delivery. Our after-sales team will respond within 1-3 business days. For manufacturing defects, PCBsync provides free repair or rework at no cost, including return shipping.

PCBA failure analysis →

09 / Questions from buyers & engineers

Before you approve a supplier.

Does every PCB receive electrical testing?

PCBSync confirms 100% electrical testing for bare PCBs. Agree the test data, criteria and reporting needed for the order. This does not mean that every operating mode of a populated assembly has been functionally tested.

Can I request functional testing on my PCBA order?

Yes. Provide the test specification, firmware, interface information, loads and acceptance limits. Fixtures, programming, unit coverage and the report format are reviewed as part of the scope and quotation.

Will I receive a microsection image for every board?

Microsection testing examines a prepared cross-section, commonly from a representative coupon or sample. Confirm the sampling plan, features measured and lot coverage. It should not be interpreted as a cross-section of every delivered board.

What should I check on UL and ISO 9001 documents?

Check the relevant entity and site, applicable scope, validity and issuing or listing details. For UL, confirm that the construction needed for your board is covered by the applicable file. Request the documents as part of supplier qualification.

How do I specify IPC Class 2 or Class 3?

State the required class together with the applicable document and revision, controlled drawings and any customer exceptions. PCBSync must review the construction and acceptance requirements before the order is accepted.

Which files help define a useful quality plan?

Send the fabrication and assembly drawings, BOM revision and critical dimensions. For PCBA, add programming and test requirements. Include required reports, traceability, packaging, first-article approvals and any customer inspection template.

Start with your requirements

Ask for a quality review
with your quote.

Tell us what must be controlled, measured and documented. We can review the acceptance plan alongside fabrication, assembly and test scope.

[email protected]
+86-755-23203480

Include your board revision and required report set. Use the tool above to prepare a concise brief.

Drag & Drop Files, Choose Files to Upload You can upload up to 3 files.